Cisco 7246 - uBR Router Manual de usuario descargar pdf (Pagina 30)

Command Reference

12.0(3)T

cable spectrum-group frequency

To conﬁgure a spectrum group to use a center frequency, use the cable spectrum-group frequency

global conﬁguration command. Use the no form of this command to delete the conﬁgured frequency

setting for this spectrum group.

cable spectrum-group groupnum [time day hh:mm:ss] [delete] frequency freq-hz [dBmV]

no cable spectrum-group groupnum [time day hh:mm:ss][delete] frequency freq-hz [dBmV]

Syntax Description

Default

No default behavior or values.

Command Mode

Global conﬁguration

Command History

Usage Guidelines

A spectrum group allows the upstream frequency and input power level to change whenever noise

impairs upstream trafﬁc.

Cable plants can choose to set up a daily schedule that changes the input power level and not the

frequency.

groupnum Spectrum group number. Valid values are from 1 to 32.

time day hh:mm:ss (Optional) Makes the frequency setting available at the speciﬁed

time in hours (hh), minutes (mm), and seconds (ss).

delete (Optional) Removes the frequency setting from use at the

speciﬁed time.

frequency Speciﬁes that a center frequency setting should be used in this

group.

freq-hz Upstream center frequency in Hertz. Valid values are from

5,000,000 to 42,000,000. Half of the upstream carrier energy is

distributed above and half is distributed below the speciﬁed

frequency.

dBmV (Optional) Nominal input power level in decibels per millivolt

(dBmV). Valid values are from –10 to +10.

Release Modiﬁcation

11.3 XA1 This command was ﬁrst introduced.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 77 78

Sin comentarios

Cisco 7246 - uBR Router Manual de usuario Pagina 30